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Model K543 is a new member of RICOR’s expanding family of highly reliable integral rotary microcoolers. This Model was developed to meet the growing demand for more cooling power and extended lifespan. The cooler is designed primarily for Mega pixel format FPAs, Dual band detectors, QWIP applications and Slip-On configuration where reliability, cooling power, robustness and low acoustic signature are of concern.

his model is integrated with K548 cold fingers. The cooler is designed to withstand harsh environmental conditions and excels in low vibration export and low acoustic noise level.


Cooler Weight: 830 gr.

Cooldown Time (500J @77K @23°C):
4 min. Typ.

Input Voltage: 18-28 VDC

Cooling Capacity: 1W @77K @71°C

Steady State Input Power:
(1000mW @77K @23°C): 20Wdc Typ.

MTTF > 15,000 Hours (Goal)

Maximum Input Power: 45Wdc

Meets Environmental Conditions per

Ambient Temperature Range:
- Operational: -40°C...+71°C
- Non-Operational: -56°C...+85°C